Tubing Casing Patch Technologies

The Owen X-SPAN® Tubing/Casing patch System provides a proven, durable and
dependable seal over perforations, splits, corrosions or leaks in all types of tubulars.
This system can be deployed on electric wireline or tubing and used on conventional,
horizontal, monobore, multi-lateral, slim hole or geothermal well bores. The Owen
X-SPAN® System has proven to be an economical and reliable solution for a broad
range of applications, including shutting off unwanted water influx, zonal protection
for frac-through applications, repairing tubular leaks from pin holes to collar
leaks, repairing corroded or eroded tubing or casing as well as isolating frac ports
and auxiliary tools in horizontal wells.

The large bore assures easy passage of service tools including bridge plugs, drop
balls, seal bore assemblies, logging tools and perforating systems. The minimal
surface equipment required for deploying the patch and rig less intervention results
in tremendous savings for the operator. The metal-to-metal X-SPAN® seal is
proven technology engineered for high temperature applications while yielding the
highest burst and collapse pressure ratings in the industry. The X-SPAN® casing
patch can be deployed to protect 300-ft (91-m) sections of tubing or casing on a
single trip, with multi-trip stackable patches available to span longer intervals.
X-SPAN® Systems can be designed using premium alloys for extreme well bore
environments and custom sized for most tubing restrictions.

The full range of Owen's X-SPAN® Technology include:

The standard X-SPAN® System consists
of three basic components; a top metal to metal sealing element, a tubular extension
and a bottom metal to metal sealing element. The system is modular and patch lengths
can be adjusted at the field. It is the most reliable patch on the market and the
pressure integrity is not reduced due to casing conditions.

The GTX-SPAN® adds premium sealing
elements with each element containing two elastomer seals that have enabled us to
provide the industry with the first effective gas tight patch.

The BPX-SPAN® is an elastomer free
bridge plug designed for hostile well conditions that can cause the elastomers to
swell on standard bridge plugs while running in the hole. The BPX-SPAN® uses
our proven metal to metal seal technology to create a mechanical seal and anchor
to the casing wall. The BPX-SPAN® can include a ceramic knock out sub, pump
out sub or burst disc or be converted as a hanger system for velocity strings or
include a tailpipe assembly with profile subs.

The new multi-trip stackable STX-SPAN® version can be utilized to isolate longer
intervals and deployment can be performed on flowing or static wells. The STX-SPAN®
System is also ideal for wells with limited rig up height and on wells that have
severe dog legs where only short sections will pass. Each section seals to the previous
one via a ratchet latch stinger and seal bore receptacle.

The SST-SPAN®
is an elastomer free suspension or hanger tool that can be used to hang tubing or velocity strings in a well. The SST-SPAN® uses our proven metal to metal seal technology to create a mechanical seal and anchor to the casing wall. The SST-SPAN® is well suited for hostile environments including high C02 and high temperature applications.

All Owen X-SPAN® Systems are easily deployed using a range of multi-stage explosive
or hydraulic setting tools. The explosive setting tools can be initiated electrically,
on e-line or slick line using a variety of compatible firing systems. For your conventional
tubing or coil tubing deployment requirements, we have several sizes of hydraulically
operated setting tools available. X-SPAN® Systems are easily removable by just
milling off the sealing elements. The reliability and quality of the X-SPAN®
System has been proven many times over the past several years with over 2900 installations
completed with a success rate of 98% when setting depth has been achieved.